Function requirements
Circuit 15R ON
Electronic Toll Collection System (ETC) card inserted
Transport mode not active
General
The ETC simplifies the process of payment on toll roads. It settles payment procedures automatically without the driver having to stop the car.
Function sequence
The ETC/DSRC antenna (A2/94) and the Electronic Toll Collection control unit (A50/3) are installed in the vehicle for transmitting and receiving the data. The Electronic Toll Collection control unit communicates with the toll booth via the ETC/DSRC antenna. For automatic payment a special ETC card must be inserted into the Electronic Toll Collection control unit. All information concerning the user and the fees that have already been paid are stored on this card. At the vehicle side, the Electronic Toll Collection control unit is connected to the COMAND controller unit (A40/3) via an RS-232C interface. The ETC also has voice output and visual output.
Voice output takes place when:
a read error occurs in the ETC card
the ETC card is not accepted
an error occurs in the ETC card reader
a communication error occurs in the ETC gate
detailed information is present on recent toll payments
the ETC is not inserted
Visual outputs (pop-ups) appear on the Audio/COMAND display (A40/8) when:
Booted COMAND controller unit and ETC card not inserted
Booted COMAND controller unit and ETC card inserted
Positive feedback from toll booth
Negative feedback from toll booth (e.g. no authorization)
Referenced documents
- gf8285p9999gr Overview of system components, telematics